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v PROJBGTI L E FOR CARRYING HIGH EXPLOSIVES Patented 25 -1884..

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FREDERIC H. SNYDER, E JERSEY CITY, NEW JEEsE'n-Assieuon 'ro THE DYNAMITE 'PROJEOTILE ooMPANY, OF NEW roamii. Y.

' Can ace-rite FQR oaaevme HIGH EXPLQSWES.

SPECIFICATION forming part of Letters Patent No. 295,830, dated March 25, 1884-.

Application file d October as, was. (No model.)

To aZZ whom it may concern.-

Be it known that I, FREDERICK H. SNYDER, of Jersey City, Hudson county, New'Jersey, have'invented certain new and useful Improve ments in Projectiles for Carrying High Explosives, as hereinafter set forth and clalmed. My invention relates to that class of projectiles which carry a magazine or. chamber charged with explosives, and is alike applicable to projectiles designed to be fired from ordnance or firearms, and to rockets to be propelled either through the air or through "water, and which are designed to be exploded against an object.

The difficulties heretofore encountered in the use of high explosives in projectiles of the character referred to is that theyare liable to j be exploded by the concussion produced by the explosion of the propelling-charge during the initial movement of the projectile, thus rendering the latter 'useless, and whemfired from a gun dangerous, for the reason that the charge of high explosives was liable to be exploded within the barrel of the gun, and to destroy the same; and the object of my invention is to overcome this difficulty and to prof duce a projectile that will make the use of explosives of the character referred to practicable.

Referrin to the accom )an in drawin s a 1 5 a: a

which form a partof this specification, Figure 1 represents a longitudinal sectionof a gun containing my projectile. Fig. 2 is a section of a sabot designed for use in connection with my projectile. Fig. 3 is a view of one of the concavo-convex notched disks used as a cap plate for the sabot; and Fig. 4 shows-the manher of putting two of these disks together. Fig. 5 represents a rear elevation of the projectile shown in Fig. 1. Fig. 6 is a longitudinal section of the front end of my projectile, showing the spring cushion or buffer inten posed between the body and the shell.

In carrying out my invention, I provide a shell or magazine, A, of any suitable material for containing the charge of high explosivessuch as nitro-glycerine, dynamite, gun-cotton, fulminate of mercury, or any other explosive of like characterand this shell or magazine I mount on the front end of the body of the projectile B. In order: to avoid the percussive effect of the explosion of the propellingcharge, I interpose between the shell or magazine and the body of the projectile'a spring or cushion, a, which takes up the initial blow or 5 5 shock produced by the explosion of the charge, and transmits its force gradually to the magazine. In the drawings I have shown this cushion as composed of a spiral springbut of course it will be understoodthat'alnymtlfer 6o device-such as a chambered rubber bu'ife'r or air'cushionhaving the same qualities may be substituted therefor.

In Fig. 1 the shell or magazine is shown as having its rear part made tubular and fitted over the outside of the body of the projectile. This is an easy and convenient way of connecting these parts; but'the construction may be reversed and the magazine fitted within a chamber or bore in the front end of the body B. Other modifications may readily suggest themselves; but the particular manner of connecting these parts is immaterial, the spring cushion or buffer being the essential feature of this part of my invention. In "order to maintain the projectile in proper position in the gun, andto impart rotary motion thereto, so as to secure accuracy of flight, I provide the rearend of the body with a series of spiral wings or blades, 1), which may consist of any desired number, from two upward. The outer edges of these wings are preferable in a plane with the outside of-the front end of the body, and increase in width toward the rear, by reason of the shape of the body of the projectile, which tapers toward the rear from a point at or near its middle, terminating in a point. I make these wings preferable of thin sheet-steel, for the reason that if made of heavy or unyielding material, sudden rotation would be imparted to the projectile during its initial movement in or from the gun, and this it is desirable to avoid on account of the charactei of the explosives which it is designed to charge the shell A with, these explosives being of such a nature as to be fired by a too-sudden rotary movement, as well as by a sudden for ward movement of the shell. The light elas tic wings will yield against the pressure of the atmosphere, but after the projectile has started on its flight they will graduallyresuine their normal position and present an inclined. or

spiral surface ,to the line of flight, and will thus impart a gradual rotary motion to the projectile, by which the danger of premature explosion of the contents of the shell is avoided.

In Fig. 1, at the base of the projectile B, I provide a sabot, an enlarged sectional view of which is shown in Fig. 5. This sabot I make of disks of wood or other suitable material.

0 0 represent fiat disks, and e a disk convex on its front face, and is covered by a convex metallic cap, f,- which, when in its normal po sition is only in contact with the'disk e at the periphery. 9 represents a bolt attached to the center of the eapf,-which slides freely through the disks 0 and c c. i '5 represent. packingdisks composed of some flexible material placed between the disks 0,0 and e. These disks have a cup-shaped lip at the periphery,'fitting the aged by the explosive.

bore of the gun. Z represents the,cl 1an1ber at the base of the gun containing the charge.

The object of the compound sabot is to prevent, the possible escape of the gases gener- In case a very heavy projectile is used" it is possible that some of the gases may be driven past the packingdisks 5 i, but. any further passage of these gases 7 will be prevented by the disk 0 being driven into contact with the flexible metallic cap f, thereby .forcing the same into close contact with'the bore of the gun. It will readily be seen that the increased area presented by the disk fover the area presented by the flexible disks 6 i to the charge .willcause the disks 0 c and e to slide on the rod 9, increasing thearea flexible disks i i.

' In order to make the disks ff as pliable and elastic spring cushion or buffer interposed be- I of the cap f by flattening the same, before any 1 5 pressure is exerted to force the gases pastt-he yielding as possible, I form slots or notches h in their edges, and when the disks are placed 40 together to 'form the complete cap the slots or notches in one are arranged between those of the other, so as to prevent the passage of any of the gases through them.

. Having thus described my invention, what 5 I desire to secure by Letters Patent, is I and'elastic spiral wings upon the outside of 55 p the body, as'and for the purposcsset forth.

' 3. The sabothereindescribcd, consisting of 7 a series of disks, 0 '0 and 6, connected .by rod g, witlrinterpose'd flexible disks 6 t and concavo-convex cap-platef, in combination with 66 the'projectilebody B, shell or magazine A,

. and bufi'era, interposed between the-body and shell, as shown and described; I

FREDERlCK H. SNYDER. Witnesses'r p GEORGE W. J OHNES, WARREN G. STONE. 

